DE321359T1 - METHOD FOR PRODUCING CROSS-LINKED POLY (BETA-ALANINE) IN THE FORM OF MICROBALL PARTICLES. - Google Patents

METHOD FOR PRODUCING CROSS-LINKED POLY (BETA-ALANINE) IN THE FORM OF MICROBALL PARTICLES.

Info

Publication number
DE321359T1
DE321359T1 DE198888403225T DE88403225T DE321359T1 DE 321359 T1 DE321359 T1 DE 321359T1 DE 198888403225 T DE198888403225 T DE 198888403225T DE 88403225 T DE88403225 T DE 88403225T DE 321359 T1 DE321359 T1 DE 321359T1
Authority
DE
Germany
Prior art keywords
alanine
beta
microspheres
cross
poly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE198888403225T
Other languages
German (de)
Inventor
Claudine F-94170 Le Perreux Lapoiriere
Claude F-75017 Paris Mahieu
Christos F-95160 Montmorency Papantoniou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9357937&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE321359(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by LOreal SA filed Critical LOreal SA
Publication of DE321359T1 publication Critical patent/DE321359T1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/48—Polymers modified by chemical after-treatment
    • C08G69/50—Polymers modified by chemical after-treatment with aldehydes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/28—Condensation with aldehydes or ketones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/48—Isomerisation; Cyclisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Process for the preparation of crosslinked poly- beta -alanine in the form of microspheres. <??>This process comprises the stages consisting: a) in polymerising acrylamide in the tert-butanol/toluene solvent mixture in the presence of a polymerisation initiator and of an octadecene-maleic anhydride copolymer as dispersing agent, b) in subjecting the poly- beta -alanine suspension obtained to crosslinking with the aid of a dialdehyde as crosslinking agent, and c) in isolating the microspheres of crosslinked poly- beta -alanine. <??>The microspheres obtained exhibit a narrow size scatter.

Claims (2)

R/6355 PatentansprücheR/6355 Patent claims 1. Verfahren zur Herstellung von vernetzten! Poly-/?-alanin in Form von Mikrokügelchen mit geringer Größenstreuung, dadurch gekennzeichnet, daß es folgende Schritte umfaßt:1. Process for the preparation of cross-linked poly-/-alanine in the form of microspheres with a small size dispersion, characterized in that it comprises the following steps: a) Polymerisation von Acrylamid in einem Lösungsmittelgemisch aus Tertiär-Butanol/Tolul in Gegenwart eines Polymerisationsinitiators und eines Octadecen-Maleinsäureanhydrid-Copolymers als Suspendierungsmittel;a) polymerization of acrylamide in a solvent mixture of tertiary butanol/tolul in the presence of a polymerization initiator and an octadecene-maleic anhydride copolymer as suspending agent; *° b) Vernetzung der erhaltenen Suspension von Poly-/3-alanin mit Hilfe eines Dialdehyds als Vernetzungsmittel;*° b) cross-linking the resulting suspension of poly-/3-alanine using a dialdehyde as cross-linking agent; c) Isolierung der gebildeten Mikrokügelchen aus vernetzten) Poly-/?-alanin.
20c) Isolation of the formed cross-linked poly-/-alanine microspheres.
20 2. Verfahren nach Anspruch 1,2. Method according to claim 1, da durch gekennzeichnet, daß das Lösungsmittelgemisch aus Tertiär-Butanol/Tolul in einem Verhältnis von 1 : 24 bis 10 : 1 und vorzugsweise von 1 : 6 bis 6 : 1 verwendet wird.characterized in that the solvent mixture of tertiary butanol/tolul is used in a ratio of 1:24 to 10:1 and preferably 1:6 to 6:1. 3- Verfahren nach Anspruch 1,3- Method according to claim 1, dadurch gekennzeichnet, daß der Po.lymerisationsinitiator Natrium-Tertiär-Butylat ist und in einem Anteil von 01,-2 Mol % bezogen auf Akrylamid verwendet wird.characterized in that the polymerization initiator is sodium tertiary butylate and is used in a proportion of 0.1-2 mol% based on acrylamide. ·*· « a % &phgr; &bgr; &Agr; a ·*· « a % &phgr; &bgr; α a R/6355R/6355 Verfahren nach Anspruch 1,Method according to claim 1, dadurch gekennzeichnet,characterized, daß der Dialdehyd Glutaraldehyd in einer 20 - 25%igenthat the dialdehyde glutaraldehyde in a 20 - 25% wässrigen Lösung ist und in einem Anteil von 1-15 Gew.aqueous solution and in a proportion of 1-15 wt. bezogen auf das eingesetzte Akrylamid verwendet wird.based on the acrylamide used.
DE198888403225T 1987-12-16 1988-12-16 METHOD FOR PRODUCING CROSS-LINKED POLY (BETA-ALANINE) IN THE FORM OF MICROBALL PARTICLES. Pending DE321359T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8717573A FR2624866B1 (en) 1987-12-16 1987-12-16 METHOD FOR PREPARING CROSS-LINKED POLY ŸI2ŸB-ALANINE IN THE FORM OF MICROSPHERES

Publications (1)

Publication Number Publication Date
DE321359T1 true DE321359T1 (en) 1989-12-07

Family

ID=9357937

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198888403225T Pending DE321359T1 (en) 1987-12-16 1988-12-16 METHOD FOR PRODUCING CROSS-LINKED POLY (BETA-ALANINE) IN THE FORM OF MICROBALL PARTICLES.
DE3886909T Expired - Fee Related DE3886909T2 (en) 1987-12-16 1988-12-16 Process for the preparation of cross-linked poly (beta-alanine) in the form of microsphere particles.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE3886909T Expired - Fee Related DE3886909T2 (en) 1987-12-16 1988-12-16 Process for the preparation of cross-linked poly (beta-alanine) in the form of microsphere particles.

Country Status (9)

Country Link
US (1) US4927883A (en)
EP (1) EP0321359B1 (en)
JP (1) JP2610326B2 (en)
AT (1) ATE99715T1 (en)
CA (1) CA1334605C (en)
DE (2) DE321359T1 (en)
ES (1) ES2010178T3 (en)
FR (1) FR2624866B1 (en)
GR (1) GR890300148T1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU87410A1 (en) * 1988-12-20 1990-07-10 Cird COSMETIC OR PHARMACEUTICAL COMPOSITION CONTAINING POLYMERIC OR FATTY BODY MICROSPHERES CHARGED WITH AT LEAST ONE ACTIVE PRODUCT

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079044A (en) * 1974-11-04 1978-03-14 Hercules Incorporated Glyoxal modified poly(β-alanine) strengthening resins for use in paper
CA1096540A (en) * 1976-02-12 1981-02-24 Terence W. Rave GLYOXAL MODIFIED POLY(.beta.-ALANINE) STRENGTHENING RESINS FOR USE IN PAPER
LU84268A1 (en) * 1982-07-13 1984-03-22 Oreal CROSS-LINKED POLY BETA-ALANINE AND ITS DIFFERENT APPLICATIONS

Also Published As

Publication number Publication date
CA1334605C (en) 1995-02-28
GR890300148T1 (en) 1990-03-14
EP0321359B1 (en) 1994-01-05
FR2624866A1 (en) 1989-06-23
ATE99715T1 (en) 1994-01-15
DE3886909D1 (en) 1994-02-17
ES2010178A4 (en) 1989-11-01
FR2624866B1 (en) 1991-11-29
JPH01207321A (en) 1989-08-21
DE3886909T2 (en) 1994-08-11
JP2610326B2 (en) 1997-05-14
ES2010178T3 (en) 1994-03-01
EP0321359A1 (en) 1989-06-21
US4927883A (en) 1990-05-22

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